public class TestShowTwos {
    public static void main(String[] args) {
        showTwos(7);    // 7 = 7
        showTwos(18);   // 18 = 2 * 9
        showTwos(68);   // 68 = 2 * 2 * 17
        showTwos(120);  // 120 = 2 * 2 * 2 * 15
    }
    
    // your code goes here

}
